ADM206| Datasheet

ADM206, ADM207, ADM208, ADM209, ADM211, ADM213, ADM207, ADM208, A

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0.1 uF, 5 V Powered CMOS RS-232 Drivers/Receivers ADM206 ADM211/ADM213
FEATURES
0.1 uF to 10 uF capacitors 120 kB/s data rate Two receivers active in shutdown (ADM213) On-board dc-to-dc converters 9 V output swing with 5 V supply Low power (15 mW) Low power shutdown 5 uW 30 V receiver input levels Latch-up free Plug-in upgrade for MAX205-211/213

TYPICAL OPERATING CIRCUIT
5V INPUT +
12 14

0.1uF 16V 0.1uF 16V

C1+ C1 C2+ C2

+5V TO +10V VOLTAGE DOUBLER +10V TO 10V VOLTAGE INVERTER T1 T2 T3 T4 R1 R2 R3 R4 R5

VCC 11 V+ 13 V 17

0.1uF + 6.3V 0.1uF + 16V

+ 0.1uF

15 16

T1IN T2IN T3IN T4IN R1OUT R2OUT TTL/CMOS OUTPUTS R3OUT R4OUT R5OUT
EN

T1OUT T2OUT T3OUT T4OUT R1IN R2IN R3IN R4IN R5IN SD RS-232 INPUTS2 RS-232 OUTPUTS

TTL/CMOS INPUTS1

APPLICATIONS
Computers Peripherals Modems Printers Instruments

GND
10

ADM211

GENERAL DESCRIPTION
The ADM2xx family of line drivers/receivers is intended for all EIA-232-E and V.28 communications interfaces, especially in applications where 12 V is not available. The ADM206, ADM211, and ADM213 feature a low power shutdown mode that reduces power dissipation to less than 5 uW, making them ideally suited for battery-powered equipment. The ADM213 has an active low shutdown and an active high receiver-enable control. Two receivers of the ADM213 remain active during shutdown. This feature is useful for ring indicator monitoring. Table 1. Selection Table
Part Number ADM206 ADM207 ADM208 ADM209 ADM211 ADM213 Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.

NOTES 1INTERNAL 400k PULL-UP RESISTOR ON EACH TTL/CMOS INPUT. 2INTERNAL 5k PULL-DOWN RESIST OR ON EACH RS-232 INPUT.

Figure 1.

All members of the ADM2xx family, except the ADM209, include two internal charge pump voltage converters that allow operation from a single 5 V supply. These parts convert the 5 V input power to the 10 V required for RS-232 output levels. The ADM209 is designed to operate from 5 V and 12 V supplies. An internal +12 V to 12 V charge pump voltage converter generates the 12 V supply.
External Capacitors 4 4 4 2 4 4 Low Power Shutdown (SD) Yes No No No Yes Yes (SD) TTL ThreeState EN Yes No No Yes Yes Yes (EN) Number of Receivers Active in Shutdown 0 0 0 0 0 2

Power Supply Voltage 5V 5V 5V 5 V and 9 V to 13.2 V 5V 5V

Number of RS232 Drivers 4 5 4 3 4 4

Number of RS-232 Receivers 3 3 4 5 5 5

00067-0-001